CVE-2026-46073— hwmon: (powerz) Fix missing usb_kill_urb() on signal interrupt
Affected Version Matrix 10
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 4381a36abdf1c5c0323c1c51f869dc000115eb20< 8b51277eec433d4e724b273a5a5c64e8acfbe405 | affected |
4381a36abdf1c5c0323c1c51f869dc000115eb20< b6cb07f02253bdefd2339e57eaa1428a7b28cd0f | affected | ||
4381a36abdf1c5c0323c1c51f869dc000115eb20< d64458784036f5818e22781254b6be299d52a19c | affected | ||
4381a36abdf1c5c0323c1c51f869dc000115eb20< b66437cb20a2d9ef201f40b675569f8ea7787c9f | affected | ||
6.7 | affected | ||
< 6.7 | unaffected | ||
6.12.86≤ 6.12.* | unaffected | ||
6.18.27≤ 6.18.* | unaffected | ||
| … +2 more rows | |||
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I. Basic Information for CVE-2026-46073
Vulnerability Information
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Vulnerability Title
hwmon: (powerz) Fix missing usb_kill_urb() on signal interrupt
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: hwmon: (powerz) Fix missing usb_kill_urb() on signal interrupt wait_for_completion_interruptible_timeout() returns -ERESTARTSYS when interrupted. This needs to abort the URB and return an error. No data has been received from the device so any reads from the transfer buffer are invalid. The original code tests !ret, which only catches the timeout case (0). On signal delivery (-ERESTARTSYS), !ret is false so the function skips usb_kill_urb() and falls through to read from the unfilled transfer buffer. Fix by capturing the return value into a long (matching the function return type) and handling signal (negative) and timeout (zero) cases with separate checks that both call usb_kill_urb() before returning.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于hwmon powerz中信号中断时缺少usb_kill_urb调用，可能导致读取无效传输缓冲区。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-46073
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-46073 (4)
Same Patch Batch · Linux · 2026-05-27 · 275 CVEs total
| CVE-2026-45898 | 9.8 CRITICAL | RDMA/iwcm: Fix workqueue list corruption by removing work_list |
| CVE-2026-46039 | 9.8 CRITICAL | rxgk: Fix potential integer overflow in length check |
| CVE-2026-45988 | 9.8 CRITICAL | rxrpc: Fix re-decryption of RESPONSE packets |
| CVE-2026-45972 | 9.8 CRITICAL | smb: client: fix potential UAF and double free in smb2_open_file() |
| CVE-2026-46043 | 9.1 CRITICAL | RDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv |
| CVE-2026-45945 | 8.8 HIGH | iommu/vt-d: Fix race condition during PASID entry replacement |
| CVE-2026-46056 | 8.8 HIGH | Bluetooth: hci_event: fix potential UAF in SSP passkey handlers |
| CVE-2026-45843 | 8.2 HIGH | slip: bound decode() reads against the compressed packet length |
| CVE-2026-46037 | 8.2 HIGH | ipv4: icmp: validate reply type before using icmp_pointers |
| CVE-2026-46010 | 8.1 HIGH | rxrpc: Fix error handling in rxgk_extract_token() |
| CVE-2026-46099 | 8.1 HIGH | net: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels |
| CVE-2026-46076 | 7.9 HIGH | KVM: nSVM: Raise #UD if unhandled VMMCALL isn't intercepted by L1 |
| CVE-2026-45956 | 7.8 HIGH | drm/exynos: vidi: use priv->vidi_dev for ctx lookup in vidi_connection_ioctl() |
| CVE-2026-45878 | 7.8 HIGH | drm/amdkfd: Fix watch_id bounds checking in debug address watch v2 |
| CVE-2026-46036 | 7.8 HIGH | vfio/cdx: Serialize VFIO_DEVICE_SET_IRQS with a per-device mutex |
| CVE-2026-45935 | 7.8 HIGH | fs/ntfs3: Fix slab-out-of-bounds read in DeleteIndexEntryRoot |
| CVE-2026-46065 | 7.8 HIGH | fbdev: defio: Disconnect deferred I/O from the lifetime of struct fb_info |
| CVE-2026-45909 | 7.8 HIGH | clk: mediatek: Drop __initconst from gates |
| CVE-2026-45910 | 7.8 HIGH | RDMA/rxe: Fix race condition in QP timer handlers |
| CVE-2026-45933 | 7.8 HIGH | bpf: Preserve id of register in sync_linked_regs() |
Showing top 20 of 275 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-52910
bpf: Free reuseport cBPF prog after RCU grace period. - CVE-2026-52909
ip6_vti: set netns_immutable on the fallback device. - CVE-2026-52908
RDMA: During rereg_mr ensure that REREG_ACCESS is compatible - CVE-2026-46331
net/sched: fix pedit partial COW leading to page cache corru - CVE-2026-52907
media: rockchip: rkcif: fix off by one bugs
Same vendor: Linux
- CVE-2026-52910
bpf: Free reuseport cBPF prog after RCU grace period. - CVE-2026-52909
ip6_vti: set netns_immutable on the fallback device. - CVE-2026-52908
RDMA: During rereg_mr ensure that REREG_ACCESS is compatible - CVE-2026-46331
net/sched: fix pedit partial COW leading to page cache corru - CVE-2026-52907
media: rockchip: rkcif: fix off by one bugs
V. Comments for CVE-2026-46073
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